Workshop on Hydro-

Meteorological instrumentation

in India

15th September’14, New Delhi

ASB Systems Pvt. Ltd.,

Mumbai

Overview Measuring Water Currents &

Discharge with ADCP

Measuring Sediments with ADCP

Underwater imaging

Measuring water parameters with Multiparameter probes

Measuring Currents & Discharge

Over the Years

Te

ch

no

log

y a

dva

nce

me

nt

Impeller

based

systems for

currents

Intelligent

ADCP

RiverRay,

RiverPRO

Introduction

of ADCP

Changing trends in

technology

ADCP ADCP stands for “Acoustic Doppler

Current Profiler”

An ADCP can measure the

magnitude and direction of water

currents at different levels

ADCP can be deployed from

stationary as well as moving

platforms

ADCPs can be mounted vertically or

horizontally

Advantages

Models – Moving Platform

RiverRay

Streampro

Riverpro

RioGrande

Models – Fixed platform

Channelmaster

V-ADCP

Measuring Sediments

using ADCP

ADCP for Sediment load

ADCP data can be used as a

surrogate to measure Suspended

Sediment Concentrations (SSC)

Suspended sediment discharge

can be obtained by multiplying

average SSC with water discharge

Software is available that enables

the user to quantify sediment

concentrations using an ADCP

ADCP for Sediment load

Proven technology is available to

convert the Backscatter data into

S e d i m e n t c o n c e n t r a t i o n s

An empir ica l re la t ion betn

backsca t te r and sed imen t

concentration allows for the

calculation of the SSC values

Aquavision ViSea DAS

software suite can be

used to configure the

ADCP and acquire,

present and save ADCP

and additional sensor

data in real time

Allows the user to

compute Total sediment

flux, 3D tracking of

sediment during

sediment relocation,

Dredge and sediment

behavior studies,

calculate correlation

between ADCP/OBS

Aquavision Modules

Compatible with Teledyne RDI ADCPs

ViseaDAS

Survey

Toolbox

Plume

detection

Toolbox

• Acquisition

• Playback

• Re-process

• 3D viewing

• Edge estimation

• Data plots

• Measure plumes

• Sediment studies

• Quantifying flux

More about PDT…

- Lets you quantify sediment concentrations using an ADCP

- Flexible, robust and can be used in real time

- Data from ViSea DAS is sent to the PDT and converted

to sediment concentrations and total sediment flux

Underwater

Imaging

…is like comparing an

Underwater Camera with an

Imaging Sonar

An imaging Sonar can do a lot

more…

UNDERWATER IMAGING

Things only a Sonar can do!

Zero visibility operation Deploy where a diver cannot go

Underwater measurements Mosaicing

• Real-time Imaging/Video streaming

• Stationary or mobile platform

• Dual frequency models

• Acts as a Stationary Sidescan

• 2D, 3D,Multibeam,Sector scanner, Microbathymetry

Features

DAM

INSPECTION MEASURING

SCOUR

2D SONARS 3D SONARS

SEARCH &

RESCUE BRIDGE

INSPECTION

Multi-parameter probes

NKE Instrumentation

NKE

MAREL

Estuarine

Station

Measurement of:

Physico-chemical properties

Meteorological paramaters

Currents

Channel temperature

Features Autonomous

Well suited for both Fresh water & sea water

Remote maintenance

NKE Instrumentation

NKE MPx

Measurement of:

Temperature

Pressure

Conductivity

Turbidity

DO

Fluoroscence

Features Portable - Profile measures from boat

Remote operation via PLC controller

Capable of Autonomous operation

NKE Instrumentation

NKE SMATCH (Buoy)

Measurement of:

Temperature

Pressure

Conductivity

Turbidity

DO

Fluoroscence

Features Environmental monitoring

Wireless configuration

GPRS link

Thank You!